Model Npower 30kVA - 130kVA - United Power & Battery

General Specifications
Options and Accessories
• Matching valve-regulated lead-acid
battery packs
• Matching maintenance bypass cabinet
• Matching bolt-on power distribution
unit, with one or two 42-pole panels
• Input filter/power factor correction
• Internally mounted input
isolation transformer
• Load Bus Sync Systems
• Flooded rack-mounted battery systems
• SNMP, SiteScan and other
communications interfaces:
See sidebar “Communications Options”
• Remote monitor panel
• Alarm status contacts
• Customer alarm inputs
Input
Voltage: 208, 220, 240, 480 or 600 VAC,
60 Hz. 3-phase, 3-or 4-wire plus ground
Voltage Range: +10, -15% (no battery
discharge at -20%)
Frequency Range: 60 Hz, ± 5 Hz
Current Distortion: 10% maximum
reflected THD at full load with optional
input filter. 30% THD without filter.
Current Limit: 115% of full load
input current
Current Walk-in: 20 seconds to full load.
Power Factor: Up to 0.96 lagging at full
load with optional input filter. 0.80
lagging minimum at full load without
optional input filter.
Surge Protection: Sustains input surges
without damage, per criteria listed in ANSI
C62.41-1980, A & B (IEEE 587).
Output
Voltage: 208, 220, 240, 480 or 600 VAC,
60 Hz, 3-phase, 4-wire plus ground.
Voltage Adjustment Range: ±5%.
Voltage Regulation:
±0.5% for balanced load
±1.0% for 100% unbalanced load.
Dynamic Regulation: ± 2.5% deviation
for 100% load step. ±1% for loss or return
of AC input.
Transient Response Time: Recover to
steady state within 1 cycle.
Voltage Distortion: For linear loads,
1% THD. Less than 2.5% THD for 100%
nonlinear loads (3:1 crest factor) without
kVA/kW derating.
Phasing Balance: 120° ±0.5° for balanced
load. 120° ±1° for 100% unbalanced load.
Frequency Regulation: ±0.1%.
Load Power Factor Range: 1.0 to 0.7
lagging without derating.
Overload: 125% of full load for ten
minutes. 150% for one minute with
true sinusoidal waveform.
Environmental
Operating Temperature: 0° to 40°C
(UPS), 20° to 30°C (battery)
Non-Operating Temperature:
-20°C to 70°C.
Relative Humidity:
0-95% non-condensing
Operating Altitude: Up to 6,600 feet
(2000 meters) without derating.
Acoustical Noise: Less than
65 dBA typical, measured 1 meter
from the unit.
Standards
ETL Listed to UL 1778 and UL 924 UPS
standards, and CSA certified.
Meets current requirements for safe
high-performance UPS operation.
11
Communications Options
The Npower will support any communications strategy.
The OpenComms family of products help you get the
most from your existing network. The OpenComms
Network Interface Card (NIC) supports three interfaces:
• Web browser, via HTML,
• SNMP interface for use with OpenComms Nform
or another Network Management System, and
• Modbus, to interface with your existing building
management system.
The OpenComms Nform software is a versatile
SNMP package. It provides:
• Centralized monitoring of all Liebert
SNMP-enabled devices,
• Event and alarm management,
• Adaptable and configurable viewer,
• Integration of third-party SNMP devices
through custom Liebert services.
Npower is also compatible with Liebert’s SiteScan family
of enterprise monitoring systems. In particular, SiteScan
WEB allows users easy access from nearly anywhere, with:
• Single and multi-site applications,
• Full-featured graphical user interface via the Web,
• Event management trending and reporting,
• User authentication and unit control,
• Full ASHRAE BACnet compatibility.
Npower can be used with a variety of other
communications products including MultiLink
shutdown software, SiteLink integrator modules,
Site TPI (to integrate signals from non-Liebert
equipment), Site I/O (to integrate sensors and contacts),
contact-closure alarm panels, and more. Contact your
Liebert sales representative for details.